Well what makes the most sense psychologically is that each 'personality' has things they deal with better, and it's not that there's a specific trigger, per se. The theory behind DID is that the personality splits itself to deal with problems that the conscious personality can't take. Maybe one personality is nicer, more sociable and easily hurt, better able to perform everyday tasks, while another has a tougher skin and able to power through tough situations to protect themselves, but has trouble in social situations. So depending on the situation, when one personality starts to get upset or uncomfortable, that's the cue for the other one to 'take over'.

edited 22nd Dec '11 6:13:28 PM by NoirGrimoir

SPATULA, Supporters of Page Altering To Urgently Lead to Amelioration (supports not going through TRS for tweaks and minor improvements.)

From what I understand with brief contact with the literature, one personality is normal, and the others are coping mechanisms for various levels and types of stress. The alternate personalities basically exist to defend the main one. (Though I should note that often they're not necessarily aware of each other.)

As such, The Incredible Hulk is cliche, but not entirely wrong.

The last thing many a boy from Side 3 will ever see; a Federation beam weapon in action.

The thing is, it's not until about halfway through the story that the character is revealed to have this disorder. Near the beginning, "Harrison" mentions that his twin "Scott" (not their real names) is not somebody to smeg with (as I mentioned, Harrison's Simon Tam; Scott's Jayne Cobb). Encounters occur with both of the "brothers". Eventually, the other characters learn that about his disorder.

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